Sum16-15 P Rates and Sources


To assess how wheat responds to phosphorus (P) fertilizer applications on high fixing soil

For further details contact your local Area Manager or the Summit Research Team

Table 1: Soil Analysis
Fig 1: Yield and Protein P rates and sources


  • There was a significant positive response to P application under these conditions.
  • No variation in yield between sources of P
  • 6-12 kg/ha of P optimised yield and gross margin in this trial